22. Gigi (1958)
Screenwriter-lyricist Alan Jay Lerner and composer Frederick Loewe basically cloned their stage hit My Fair Lady for this adaptation of French author Colette's 1945 novel about a teenage Parisian courtesan. It's got the same ugly-duckling-to-swan transformation for the leading lady (Leslie Caron), and the same half-sung 11th-hour epiphany for the confirmed-bachelor leading man (Louis Jordan). But thanks to director Vincente Minnelli, it feels original — and works better as cinema than George Cukor's film of Fair Lady does.